Converters
CSV to JSON Converter
Turn CSV or TSV data into a JSON array of objects, an array of arrays, or an object keyed by the first column.
- Runs in your browser
- Instant results
- Free, no sign-up
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How to use the CSV to JSON Converter
- Paste CSV (the first row should hold column names).
- Pick the delimiter and output shape, and choose whether to detect types.
- Copy the JSON or download it as a file.
Frequently asked questions
How are numbers and booleans handled?
With type detection on, values like 42, 3.14, true and false become JSON numbers and booleans; everything else stays a string.
What does nesting dotted headers do?
A header like address.city becomes a nested object: {"address": {"city": ...}}.
Does it handle quoted fields with commas?
Yes. Quoted fields, escaped quotes and line breaks inside quotes follow the CSV standard.